Introduction

The BME•58•••• CPUs support the use of the BMXRMS004GPF 4GB SD memory card.

Memory Card Maintenance

To keep the memory card in normal working order:

  • Avoid removing the memory card from its slot when the CPU accesses the card (memory card access green LED ON or blinking).

  • Avoid touching the memory card connectors.

  • Keep the memory card away from electrostatic and electromagnetic sources as well as heat, sunlight, water, and moisture.

  • Avoid impact on the memory card.

  • Before sending a memory card by post (mail), check the postal service security policy. In some countries, the postal service exposes mail to high levels of radiation as a security measure. These high levels of radiation may erase the contents of the memory card and render it unusable.

  • If a card is extracted without generating a rising edge of the bit %S65 and without checking that the memory card access green LED is OFF, the data (files, application, and so on) may be lost or become unreliable.

Memory Card Insertion Procedure

Procedure for inserting a memory card into a BME•58•••• CPU:

Step

Description

1

Open the SD memory card protective door.

2

Insert the card in its slot.

3

Push the memory card until you hear a click.

Result: The card should now be clipped into its slot.

Note: Insertion of the memory card does not force an application restore.

4

Close the memory card protective door.

Memory Card Removal Procedure

NOTE: Before removing a memory card, a rising edge on bit %S65 needs to be generated. If a card is extracted without generating a rising edge of the bit %S65 and without checking that the memory card access green LED is OFF, the data may be lost.

Procedure for removing a memory card from a BME•58•••• CPU:

Step

Description

1

Generate a rising edge on bit %S65.

2

Check that the memory card access green LED is OFF.

3

Open the SD memory card protective door.

4

Push the memory card until you hear a click, then release the pressure on the card.

Result: The card should unclip from its slot.

5

Remove the card from its slot.

Note: The memory card access green LED is ON when the memory card is removed from the CPU.

6

Close the memory card protective door.